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defon
3 years ago
11

Four students wrote different analogies to describe an electron before the formation of an ionic bond . Student A: A tug of war

between two wrestlers each weighing 460 lbs Student B: A dog and his owner tugging at a frisbee Student A big greedy dog stealing away a bone from a smaller dog Student D: Children exchanging their orange and strawberry flavored popsicles Which student presented a correct analogy ?
Chemistry
1 answer:
Nutka1998 [239]3 years ago
3 0

The correct analogy is that of "A big greedy dog stealing away a bone from a smaller dog."

An ionic bond is a bond formed formed between a metallic atom and a non-metallic atom.

The metallic atom is electropositive while the non-metallic atom is electronegative. Therefore, the metallic atom donates or gives up its electrons to the non-metallic atom which accepts the electrons.

During the formation of chemical bonds, only valence or outermost shell electrons are involved.

Metallic atoms have few valence electrons (between 1 to 3 electrons) while non-metallic atoms have many valence electrons (between 5 to 7 electrons).

Therefore the analogy by the student of a big greedy dog stealing away a bone from a smaller dog is correct because the non-metallic atoms takes the few electrons of the metallic atom and add to the many electrons they already have during the formation of an ionic bond.

Learn more about an ionic bond at: brainly.com/question/1225796

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3 years ago
A gas mixture containing He, Ne, and Ar exerts a pressure of 3.00 atm. What is the partial pressure of each gas present in the m
matrenka [14]
<h3>Answer:</h3>

Partial pressure of He(P(He) = 1.5 atm.

Partial pressure of Ne(P(Ne) = 1 atm.

Partial pressure of Ar(P(Ar) = 0.5 atm.

<h3>Explanation:</h3>

According to Dalton law of partial pressure the sum of partial pressures of individual gases in a gaseous mixture is equivalent to the total pressure.

The partial pressure of a gas in a gaseous mixture is given by the product of the mole fraction and the total pressure.

Our gaseous mixture contains He, Ne, and Ar and the total pressure is 3 atm.

Since we are given the ratios of the gases in the mixture, we can calculate the partial pressure of each gas.

P(He) = 3/6 × 3 atm.

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P(Ne) = 2/6 × 3 atm.

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P(Ar) = 1/6 × 3 atm.

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Therefore, the partial pressures of gases He, Ne and Ar are 1.5 atm, 1 atm, and 0.5 atm respectively.

8 0
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